diff --git a/README.md b/README.md
index b5930eb..f0b8ea9 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-WebSocket Server and Client for Arduino [![Build Status](https://github.com/Links2004/arduinoWebSockets/workflows/CI/badge.svg?branch=master)](https://github.com/Links2004/arduinoWebSockets/actions?query=workflow%3ACI+branch%3Amaster)
+WebSocket Server and Client for Arduino [![Build Status](https://github.com/Links2004/arduinoWebSockets/actions/workflows/main.yml/badge.svg?branch=master)](https://github.com/Links2004/arduinoWebSockets/actions?query=branch%3Amaster)
 ===========================================
 
 a WebSocket Server and Client for Arduino based on RFC6455.
@@ -74,19 +74,19 @@ The mode can be activated in the ```WebSockets.h``` (see WEBSOCKETS_NETWORK_TYPE
 ```c++
 void begin(const char *host, uint16_t port, const char * url = "/", const char * protocol = "arduino");
 void begin(String host, uint16_t port, String url = "/", String protocol = "arduino");
- ```
+```
  - `onEvent`: Callback to handle for websocket events
 
- ```c++
+```c++
  void onEvent(WebSocketClientEvent cbEvent);
- ```
+```
 
  - `WebSocketClientEvent`: Handler for websocket events
- ```c++
+```c++
  void (*WebSocketClientEvent)(WStype_t type, uint8_t * payload, size_t length)
- ```
+```
 Where `WStype_t type` is defined as:
-  ```c++
+```c++
   typedef enum {
       WStype_ERROR,
       WStype_DISCONNECTED,
@@ -100,13 +100,11 @@ Where `WStype_t type` is defined as:
       WStype_PING,
       WStype_PONG,
   } WStype_t;
-  ```
+```
 
 ### Issues ###
 Submit issues to: https://github.com/Links2004/arduinoWebSockets/issues
 
-[![Join the chat at https://gitter.im/Links2004/arduinoWebSockets](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/Links2004/arduinoWebSockets?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-
 ### License and credits ###
 
 The library is licensed under [LGPLv2.1](https://github.com/Links2004/arduinoWebSockets/blob/master/LICENSE)
diff --git a/examples/esp32/WebSocketClientSSLBundle/WebSocketClientSSLBundle.ino b/examples/esp32/WebSocketClientSSLBundle/WebSocketClientSSLBundle.ino
index b9385a7..f64cc58 100644
--- a/examples/esp32/WebSocketClientSSLBundle/WebSocketClientSSLBundle.ino
+++ b/examples/esp32/WebSocketClientSSLBundle/WebSocketClientSSLBundle.ino
@@ -112,7 +112,13 @@ void setup() {
     // server address, port and URL. This server can be flakey.
     // Expected response: Request served by 0123456789abcdef
     // webSocket.beginSslWithBundle("echo.websocket.org", 443, "/", rootca_crt_bundle_start, "");
+    // ESP32 3.0.4 or higher needs the size of the bundle
+    // webSocket.beginSslWithBundle("echo.websocket.org", 443, "/", rootca_crt_bundle_start, sizeof(rootca_crt_bundle_start), "");
+#if ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(3, 0, 4)
+    webSocket.beginSslWithBundle("echo.websocket.org", 443, "/", NULL, 0, "");
+#else
     webSocket.beginSslWithBundle("echo.websocket.org", 443, "/", NULL, "");
+#endif
 
     // event handler
     webSocket.onEvent(webSocketEvent);
diff --git a/library.json b/library.json
index d51149f..6869b8c 100644
--- a/library.json
+++ b/library.json
@@ -21,5 +21,5 @@
         "type": "git",
         "url": "https://github.com/Links2004/arduinoWebSockets.git"
     },
-    "version": "2.5.1"
-}
+    "version": "2.5.2"
+}
\ No newline at end of file
diff --git a/library.properties b/library.properties
index 462efc5..ceb4a3f 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=WebSockets
-version=2.5.1
+version=2.5.2
 author=Markus Sattler
 maintainer=Markus Sattler
 sentence=WebSockets for Arduino (Server + Client)
diff --git a/src/WebSocketsClient.cpp b/src/WebSocketsClient.cpp
index 8578f4b..78512e3 100644
--- a/src/WebSocketsClient.cpp
+++ b/src/WebSocketsClient.cpp
@@ -50,6 +50,9 @@ void WebSocketsClient::begin(const char * host, uint16_t port, const char * url,
     _CA_cert     = NULL;
 #ifdef ESP32
     _CA_bundle = NULL;
+#if ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(3, 0, 4)
+    _CA_bundle_size = 0;
+#endif
 #endif
 #endif
 
@@ -124,6 +127,17 @@ void WebSocketsClient::beginSslWithCA(const char * host, uint16_t port, const ch
     _CA_cert      = CA_cert;
     _CA_bundle    = NULL;
 }
+
+#if defined(ESP32) && ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(3, 0, 4)
+void WebSocketsClient::beginSslWithBundle(const char * host, uint16_t port, const char * url, const uint8_t * CA_bundle, size_t CA_bundle_size, const char * protocol) {
+    begin(host, port, url, protocol);
+    _client.isSSL   = true;
+    _fingerprint    = SSL_FINGERPRINT_NULL;
+    _CA_cert        = NULL;
+    _CA_bundle      = CA_bundle;
+    _CA_bundle_size = CA_bundle_size;
+}
+#else
 void WebSocketsClient::beginSslWithBundle(const char * host, uint16_t port, const char * url, const uint8_t * CA_bundle, const char * protocol) {
     begin(host, port, url, protocol);
     _client.isSSL = true;
@@ -131,6 +145,7 @@ void WebSocketsClient::beginSslWithBundle(const char * host, uint16_t port, cons
     _CA_cert      = NULL;
     _CA_bundle    = CA_bundle;
 }
+#endif
 
 #else
 void WebSocketsClient::beginSSL(const char * host, uint16_t port, const char * url, const uint8_t * fingerprint, const char * protocol) {
@@ -247,9 +262,11 @@ void WebSocketsClient::loop(void) {
 #if defined(ESP32)
             } else if(_CA_bundle) {
                 DEBUG_WEBSOCKETS("[WS-Client] setting CA bundle");
+#if ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(3, 0, 4)
+                _client.ssl->setCACertBundle(_CA_bundle, _CA_bundle_size);
+#else
                 _client.ssl->setCACertBundle(_CA_bundle);
 #endif
-#if defined(ESP32)
             } else if(!SSL_FINGERPRINT_IS_SET) {
                 _client.ssl->setInsecure();
 #elif defined(SSL_BARESSL)
diff --git a/src/WebSocketsClient.h b/src/WebSocketsClient.h
index 081e37e..c2a6b92 100644
--- a/src/WebSocketsClient.h
+++ b/src/WebSocketsClient.h
@@ -54,8 +54,12 @@ class WebSocketsClient : protected WebSockets {
 #endif
     void beginSslWithCA(const char * host, uint16_t port, const char * url = "/", const char * CA_cert = NULL, const char * protocol = "arduino");
 #ifdef ESP32
+#if ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(3, 0, 4)
+    void beginSslWithBundle(const char * host, uint16_t port, const char * url = "/", const uint8_t * CA_bundle = NULL, size_t CA_bundle_size = 0, const char * protocol = "arduino");
+#else
     void beginSslWithBundle(const char * host, uint16_t port, const char * url = "/", const uint8_t * CA_bundle = NULL, const char * protocol = "arduino");
 #endif
+#endif
 #endif
 
     void beginSocketIO(const char * host, uint16_t port, const char * url = "/socket.io/?EIO=3", const char * protocol = "arduino");
@@ -116,6 +120,11 @@ class WebSocketsClient : protected WebSockets {
     String _fingerprint;
     const char * _CA_cert;
     const uint8_t * _CA_bundle;
+#if defined(ESP32)
+#if ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(3, 0, 4)
+    size_t _CA_bundle_size;
+#endif
+#endif
 #define SSL_FINGERPRINT_IS_SET (_fingerprint.length())
 #define SSL_FINGERPRINT_NULL ""
 #else
diff --git a/src/WebSocketsVersion.h b/src/WebSocketsVersion.h
index 9c69078..76bacef 100644
--- a/src/WebSocketsVersion.h
+++ b/src/WebSocketsVersion.h
@@ -1,6 +1,6 @@
 /**
  * @file WebSocketsVersion.h
- * @date 17.06.2024
+ * @date 29.07.2024
  * @author Markus Sattler
  *
  * Copyright (c) 2015 Markus Sattler. All rights reserved.
@@ -25,12 +25,12 @@
 #ifndef WEBSOCKETSVERSION_H_
 #define WEBSOCKETSVERSION_H_
 
-#define WEBSOCKETS_VERSION "2.5.1"
+#define WEBSOCKETS_VERSION "2.5.2"
 
 #define WEBSOCKETS_VERSION_MAJOR 2
 #define WEBSOCKETS_VERSION_MINOR 5
-#define WEBSOCKETS_VERSION_PATCH 1
+#define WEBSOCKETS_VERSION_PATCH 2
 
-#define WEBSOCKETS_VERSION_INT 2005001
+#define WEBSOCKETS_VERSION_INT 2005002
 
 #endif /* WEBSOCKETSVERSION_H_ */